You can use it to find the area of something
638272 is the radius I think
The slope is -2. In context to this problem, the candle will burn away 2cm of its length every hour.
A≈113.1m²
...........................113.1m²
1. 9.86* 10 ^13
2. 5.394* 10^13
3. and 4. I don't know those questions are confusing
5. 2.3705* 10^35
6. 5^10
7. 4^13
8. 6^ 36
9. 2.425674* 10^30
10. 1.1556* 10^13
